package com.fosun.spr.core.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
/**
 * CORS<BR>
 * 提供开发者接口的跨域Ajax调用
 * @author v_wuxw@fosun.com
 * Feb 22, 2017
 */
public class SimpleCORSFilter implements Filter {

	public void destroy() {

	}

	public void doFilter(ServletRequest req, ServletResponse res,
			FilterChain chain) throws IOException, ServletException {
		HttpServletResponse response = (HttpServletResponse) res;
		response.setHeader("Access-Control-Allow-Origin", "*");
		response.setHeader("Access-Control-Allow-Methods",
				"POST, GET, OPTIONS, DELETE");
		response.setHeader("Access-Control-Max-Age", "3600");
		response.setHeader("Access-Control-Allow-Headers",
				" Origin, X-Requested-With, Content-Type, Accept");
		chain.doFilter(req, res);
	}

	public void init(FilterConfig arg0) throws ServletException {

	}

}